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J E Jakobsgaard, M Christiansen, P Sieljacks, J Wang, T Groennebaek, F de Paoli, K Vissing
This study ascertains the ability of bodyweight blood flow-restricted (BFR) exercise training to promote skeletal muscle adaptations of significance for muscle accretion and metabolism. Six healthy young individuals (three males and three females) performed six weeks of bodyweight BFR training. Each session consisted of five sets of sit-to-stand BFR exercise to volitional failure with 30-second inter-set recovery. Prior to, and at least 72 h after training, muscle biopsies were taken from m. vastus lateralis to assess changes in fibre type-specific cross-sectional area (CSA), satellite cell (SC) and myonuclei content and capillarization, as well as mitochondrial protein expression...
February 15, 2018: Clinical Physiology and Functional Imaging
Jacqueline Kerr, Jordan Carlson, Suneeta Godbole, Lisa Cadmus-Bertram, John Bellettiere, Sheri Hartman
PURPOSE: To improve estimates of sitting time from hip worn accelerometers used in large cohort studies by employing machine learning methods developed on free living activPAL data. METHODS: Thirty breast cancer survivors concurrently wore a hip worn accelerometer and a thigh worn activPAL for 7 days. A random forest classifier, trained on the activPAL data, was employed to detect sitting, standing and sit-stand transitions in 5 second windows in the hip worn accelerometer...
February 13, 2018: Medicine and Science in Sports and Exercise
Olivia Samotus, Andrew Parrent, Mandar Jog
BACKGROUND: Benefits of dopaminergic therapy and deep brain stimulation are limited and unpredictable for axial symptoms in Parkinson's disease. Dorsal spinal cord stimulation may be a new therapeutic approach. The objective of this study was to investigate the therapeutic effect of spinal cord stimulation on gait including freezing of gait in advanced PD patients. METHODS: Five male PD participants with significant gait disturbances and freezing of gait underwent midthoracic spinal cord stimulation...
February 14, 2018: Movement Disorders: Official Journal of the Movement Disorder Society
Trisha M Kesar, Steven Eicholtz, Bethany J Lin, Steven L Wolf, Michael R Borich
BACKGROUND: The use of transcranial magnetic stimulation (TMS) to evaluate corticomotor excitability of lower limb (LL) muscles can provide insights about neuroplasticity mechanisms underlying LL rehabilitation. However, to date, a majority of TMS studies have focused on upper limb muscles. Posture-related activation is an important under-investigated factor influencing corticomotor excitability of LL muscles. OBJECTIVE: The purpose of this study was to evaluate effects of posture and background activation on corticomotor excitability of ankle muscles...
2018: Restorative Neurology and Neuroscience
Claire E Baldwin, Kylie N Johnston, Alex V Rowlands, Marie T Williams
Purpose: We estimated the agreement of a thigh-worn accelerometer, the activPAL, used to measure activity and sedentary parameters, with observed mobility assessments of intensive care unit (ICU) survivors. Method: We prospectively compared activPAL measurements with direct observation during assessments at discharge from the ICU or acute hospital in eight participants with a median age of 56 (1st-3rd quartile 48-65) years and an Acute Physiology and Chronic Health Evaluation II score of 23 (1st-3rd quartile 17-24)...
2018: Physiotherapy Canada. Physiothérapie Canada
Dori E Rosenberg, Amy K Lee, Melissa Anderson, Anne Renz, Theresa E Matson, Jacqueline Kerr, David Arterburn, Jennifer B McClure
BACKGROUND: Older adults have high rates of obesity and are prone to chronic health conditions. These conditions are in part due to high rates of sedentary time (ST). As such, reducing ST could be an innovative strategy for improving health outcomes among obese older adults. To test this theory, we developed a novel, technology-enhanced intervention to reduce sitting time (I-STAND) and pilot tested it to assess the feasibility, acceptability, and preliminary effects of the intervention on ST and biometric outcomes...
February 12, 2018: JMIR Research Protocols
Nagaraj Hegde, Ting Zhang, Gitendra Uswatte, Edward Taub, Joydip Barman, Staci McKay, Andrea Taylor, David M Morris, Angi Griffin, Edward S Sazonov
Cerebral palsy (CP) is a group of nonprogressive neuro-developmental conditions occurring in early childhood that causes movement disorders and physical disability. Measuring activity levels and gait patterns is an important aspect of CP rehabilitation programs. Traditionally, such programs utilize commercially available laboratory systems, which cannot to be utilized in community living. In this study, a novel, shoe-based, wearable sensor system (pediatric SmartShoe) was tested on 11 healthy children and 10 children with CP to validate its use for monitoring of physical activity and gait...
February 2018: IEEE Transactions on Neural Systems and Rehabilitation Engineering
Stefaan Van Onsem, Matthias Verstraete, Sebastiaan Dhont, Bert Zwaenepoel, Catherine Van Der Straeten, Jan Victor
PURPOSES: The focus in the evaluation of total knee arthroplasty has shifted from objective measures of implant position and knee function, to patient-reported outcome measures (PROMs). The relation between these two measures was investigated and the possibility of prediction of the patient satisfaction level was evaluated by defining thresholds for improvement of (1) range of motion (ROM), (2) 6-min walk test (6MWT), (3) sit-to-stand test (STS) and (4) quadriceps force after TKA? METHODS: Fifty-seven patients were prospectively tested at preoperative and 6 months postoperative intervals...
February 8, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
Tommi Ojanen, Keijo Häkkinen, Tommi Vasankari, Heikki Kyröläinen
Introduction: Few studies have reported the amount of physical activity (PA) and its associations to physical performance of warfighters during military field training (MFT). The purpose of this study was to investigate changes in neuromuscular performance and PA among male Finnish Army conscripts during a 21-d MFT and to evaluate their recovery during 4 d after MFT. Methods: Body composition and physical performance were measured four times during the study (before MFT (PRE), after 12 d (MID), post training (POST) and after 4 d of recovery (RECO))...
February 6, 2018: Military Medicine
Susanna Mezzarobba, Michele Grassi, Roberto Valentini, Paolo Bernardis
INTRODUCTION: The intricate linkage between Freezing of Gait (FoG) and postural control in Parkinson's disease (PD) is unclear. We analyzed the impact of FoG on dynamic postural control. METHODS: 24 PD patients, 12 with (PD + FoG), 12 without FoG (PD-FoG), and 12 healthy controls, were assessed in ON state. Mobility and postural control were measured with clinical scales (UPDRS III, BBS, MPAS) and with kinematic and kinetic analysis during three tasks, characterized by levels of increasing difficulty to plan sequential movement of postural control: walk (W), gait initiation (GI) and sit-to-walk (STW)...
February 2, 2018: Gait & Posture
Antonio Caronni, Irma Sterpi, Paola Antoniotti, Evdoxia Aristidou, Fortunato Nicolaci, Michela Picardi, Giuseppe Pintavalle, Valentina Redaelli, Gianluca Achille, Luciana Sciumè, Massimo Corbo
The Timed Up and Go (TUG) test is a common mobility measure in rehabilitation. With the instrumental TUG test (ITUG; i.e. the TUG measured by inertial measurement units, IMUs), several movement measures are newly available. However, the clinical meaning of these new measures is not totally clear. Aim of the current work is to evaluate the validity of different ITUG parameters as a measure of balance. Neurological patients (n = 122; 52 females; 89 older than 65 years) completed the TUG test with IMUs secured to their back...
January 31, 2018: Gait & Posture
Maicom Lima, Arthur Sá Ferreira, Felipe José Jandre Reis, Vanessa Paes, Ney Meziat-Filho
There is evidence that patients with low back pain favor their trunk muscles when moving. However, it is unknown whether this maladaptive behavior is generalized across different functional tasks. This study analyzed the back muscle activity of patients with chronic low back pain compared to asymptomatic controls during five functional tasks. The secondary aim of this study was to test whether the electromyographic activity of patients' back muscles was correlated with either the TAMPA scale score or the Örebro Questionnaire...
January 29, 2018: Gait & Posture
Hélio José Coelho Junior, Bruno Rodrigues, Ivan de Oliveira Gonçalves, Ricardo Yukio Asano, Marco Carlos Uchida, Emanuele Marzetti
Timed 'Up and Go' (TUG) has been widely used in research and clinical practice to evaluate physical function and mobility in older adults. However, the physical capabilities underlying TUG performance are not well elucidated. Therefore, the present study aimed at investigating a selection of physical capacities underlying TUG performance in community-dwelling older women. Four hundred and sixty-eight apparently healthy older women independent to perform the activities of daily living (mean age: 65.8 ± 6...
January 31, 2018: Experimental Gerontology
Magnus Liebherr, Hanna Weiland-Breckle, Tanja Grewe, Petra B Schumacher
We often walk around when we have to think about something, but suddenly stop when we are confronted with a demanding cognitive task, such as calculating 1540∗24. While previous neurophysiological research investigated cognitive and motor performance separately, findings that combine both are rare. To get a deeper understanding of the influence of motor demands as well as the difficulty of a simultaneously performed cognitive task, we investigated 20 healthy individuals. Participants performed two cognitive tasks with different levels of difficulty while sitting or standing on one leg...
January 30, 2018: Brain Research
Danilo R Silva, Cláudia S Minderico, Fernando Pinto, Paul J Collings, Edilson S Cyrino, Luís B Sardinha
OBJECTIVES: We investigated the impact of a standing desk intervention on daily objectively monitored sedentary behavior and physical activity in 6th grade school students. DESIGN: Cluster non-randomised controlled trial. METHOD: Two classes (intervention students: n=22 [aged 11.8±0.4years]; control students: n=27 [11.6±0.5years]) from a public school in Lisbon were selected. The intervention involved replacing traditional seated classroom desks for standing desks, for a total duration of 16 weeks, in addition to performing teacher training and holding education/motivation sessions with students and parents...
February 3, 2018: Journal of Science and Medicine in Sport
Willem A Kernkamp, Nathan H Varady, Jing-Sheng Li, Tsung-Yuan Tsai, Peter D Asnis, Ewoud R A van Arkel, Rob G H H Nelissen, Thomas J Gill, Samuel K Van de Velde, Guoan Li
PURPOSE: To evaluate the in vivo anisometry and strain of theoretical anterior cruciate ligament (ACL) grafts in the healthy knee using various socket locations on both the femur and tibia. METHODS: Eighteen healthy knees were imaged using magnetic resonance imaging and dual fluoroscopic imaging techniques during a step-up and sit-to-stand motion. The anisometry of the medial aspect of the lateral femoral condyle was mapped using 144 theoretical socket positions connected to an anteromedial, central, and posterolateral attachment site on the tibia...
February 3, 2018: Arthroscopy: the Journal of Arthroscopic & related Surgery
Adriana Martini, Adriano Ammirati, Carlos Garcia, Carolina Andrade, Odete Portela, Maysa S Cendoroglo, Ricardo Sesso
PURPOSE: The diagnosis of chronic kidney disease (CKD) in elderly individuals has been increasing. The objective of this study was to evaluate physical, mental and social aspects in longevous elderly patients with CKD. METHODS: Eighty patients with CKD (stage 4 and 5, not on dialysis) and 60 longevous elderly (≥ 80 years) paired by gender and age living in the community were evaluated. Physical, cognitive, social and quality of life aspects were analyzed according to the following scales: Charlson comorbidity index, Medical Outcomes Study Short Form 36-Item (SF-36), Medical Outcomes Study, Boston Naming Test, verbal fluency test (animal naming), sit-to-stand test, gait speed, and the Mini-Mental state examination...
February 5, 2018: International Urology and Nephrology
David He, Brian Grant, Ronald R Holden, Ian Gilron
Introduction: The distinction between pain at rest and pain evoked by touch or movement has important clinical implications and may be associated with different mechanisms. However, current methods of clinical pain assessment pay little attention to directly distinguishing between these contrasting components of symptom burden. Objectives: We developed the 10-item "Functional Impact of Neuropathic Evoked and Spontaneous Symptom Evaluation" questionnaire designed to distinguish between rest and evoked pain...
March 2017: Pain Reports (Baltimore, Md.)
Pornpimol Kongtip, Noppanun Nankongnab, Redeerat Mahaboonpeeti, Sasivimol Bootsikeaw, Kiattisak Batsungnoen, Chalalai Hanchenlaksh, Mathuros Tipayamongkholgul, Susan Woskie
More than 11 million Thai people (38%) work in agriculture, but since most are in the informal sector, government enforcement and support are very limited. As a result, working conditions on Thai farms vary greatly, putting the health of many agricultural workers at risk. A cross-sectional study in three Thai provinces collected information on the work activities and conditions of 424 farmers representing five farm types: rice, vegetable, flower, rice/vegetable, and flower/vegetable. The agricultural workers were mainly women (60%); their average age was 53 but ranged from 18 to 87 years...
January 30, 2018: Annals of Work Exposures and Health
Richelle Baker, Pieter Coenen, Erin Howie, Jeremy Lee, Ann Williamson, Leon Straker
Due to concerns about excessive sedentary exposure for office workers, alternate work positions such as standing are being trialled. However, prolonged standing may have health and productivity impacts, which this study assessed. Twenty adult participants undertook two hours of laboratory-based standing computer work to investigate changes in discomfort and cognitive function, along with muscle fatigue, movement, lower limb swelling and mental state. Over time, discomfort increased in all body areas (total body IRR[95% confidence interval]: 1...
February 1, 2018: Ergonomics
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